the north shore at mandalay bay - department of toxic ... · feasibility study & remedial...
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Department of Toxic Substances Control Cal/EPA
THE NORTH SHORE AT MANDALAY BAY
Community Meeting and Public Hearing
April 24, 2018
Public Meeting Agreements1. Please turn off or mute all noise emitting
devices.2. Please treat each other with the same level
of respect you expect from others.3. Please limit cross conversations with fellow
participants as it can be distracting to the presenters and meeting participants.
4. Please hold your questions until the Q&A period of the meeting.
5. Photography and videography advisory.
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AgendaI. Welcome
II. Presentation
III. Community Questions and Answers
IV. Public Hearing
V. Next Steps
VI. Adjourn
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Question and AnswerGuidelines
Complete a speaker card - speakers will be called in the order that cards are received.
Come to the microphone when your turn is approaching; we will bring the microphone to those needing assistance.
Keep questions to 2 minutes or less.
Stay concise.
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DTSC’s Mission
To protect California’s people and environment from harmful effects of toxic substances by
restoring contaminated resources, enforcing hazardous waste laws, reducing hazardous waste generation, and encouraging the manufacture of
chemically safer products.
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NE Corner of West 5th
Street and Harbor Boulevard
About 90 Acres, developed to 60 Acres Residential and 30 Acres in the RPA, which includes the Ventura Marsh Milk-Vetch, an endangered plant
The North Shore at Mandalay Bay
Site investigation - 1991RWQCB RAP - 1996
PRACR & Site Condition Update 2013
More FS/RAP Cleanup Action Implementation 2014-2018Feasibility Study & Remedial
Action Plan (FS/RAP) with Public Comment 2006
DTSC Site CharacterizationCleanup Investigation 2004- 2005
Cleanup Action Implementation 2007
Post Cleanup CharacterizationVapor Issues Evolution 2008
Draft CLRRA Response Plan- 2018
Public Comment- 2018
History of the Site Cleanup Process1954-1981- J&J and Carney
and Sons Oil Field Waste Disposal
Financial Great Recession - 2008 Site in Foreclosure - 2008
MPL Purchase and VCA 2013
Oil Field Waste Disposal Operations
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Pre-2007 Cleanup
2007 Cleanup Grading and Soil Consolidation
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2007 High VOC Soil Excavated for Treatment
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2007 Membrane Placed between SCA and Residential Areas
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Cleanup Conceptual Site Model
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Post 2007 Cleanup
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Post 2007 - Property Owner Additional Cleanup FS/RAP Efforts
• High VOC Soil Stockpile Treatment, Off-Site Disposal, and SCA Cap Disposition - 2015
• Extraction and Treatment of Residual Soil Vapors with Soil Vapor Extraction - ongoing
• Groundwater “hot spot” treatment and Attenuation Monitoring - 2016 injections, ongoing monitoring
Draft Response Plan• Operate SVE system until acceptable levels
achieved• Construct Vapor Intrusion Mitigation (VIM) into all
residences• Continue groundwater and soil vapor monitoring• Monitor and maintain Soil Consolidation Area (SCA)
soil caps• Adopt and enforce requirements to construct VIM,
require cooperation, restrict SCA access
Residence Vapor Intrusion Mitigation - Passive and Active
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Soil Vapor Extraction Schematic
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Mandalay Bay SVE Wells
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Groundwater Natural Attenuation Areas
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Groundwater Natural Attenuation Areas
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Next Steps Receive public comment until May 12, 2018
Review and Prepare a Response to Comments document
If necessary revise and finalize Response Plan and Addendum #4
Mail out Response to Comments Document to Commentors
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DTSC Community Outreach
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Outreach Tools Community Update Community Survey Interviews and Meetings Newspaper Ads Public Meetings DTSC Websitehttp://www.dtsc.ca.gov/SiteCleanup/Projects/North_Shore_at_Mandalay_Bay.cfm
http://www.envirostor.dtsc.ca.gov/public/profile_report?global_id=19000021
Public Participation Plan
DTSC Contact InformationFor questions or additional information regarding the Site, please contact:
Michelle Banks-OrdonePublic Participation Specialist(818) 717-6573, or [email protected]
For media requests, contact:
Russ Edmondson, Public Information Officer(916) 323-3372 or [email protected]
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Information Repositories
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Hard copies of Draft Response Plan and Draft Addendum are available at local DTSC information repositories:
Send written comments to: Send Email to: [email protected] Vela, DTSC Project Manager9211 Oakdale Avenue Fax: (818) 717-6515Chatsworth, CA 91311
Question and Answer Complete a speaker card - speakers will be
called in the order that cards are received.
Come to the microphone when your turn is approaching; we will bring the microphone to those needing assistance.
Keep questions to 2 minutes or less.
Stay concise.
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Purpose of the Public Hearing Provide information about
- Draft Response Plan - Draft Fourth Addendum to the
Environmental Impact Report- How to provide comments during public
review period- Next steps
Receive verbal comments during public hearing and written comments
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Public HearingGuidelines
Complete a speaker card - speakers will be called in the order that cards are received.
Come to the microphone when your turn is approaching; we will bring the microphone to those needing assistance.
Keep comments to 3 minutes or less.
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DTSC will provide written responses to all comments in a Response to Comment document, but will not
respond to comments during this meeting.
Thank You!
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